Yoon Kyung Oh, Hyo Soon Hwang, Kyung Wook Yi, Seung-Hun Song, Jae Kwan Lee, Jun-Young Hur, Jung-Ho Shin

Korean J Obstet Gynecol.2010;53(10):927-933.   Published online 2010 October 31     DOI: http://dx.doi.org/10.5468/kjog.2010.53.10.927